Now tell us what you meant when you said "Then all three of them have much to answer for." :)

Bob Hansen

On Oct 17, 2012, at 8:32 PM, Louis Talman <talmanl@gmail.com> wrote:

> > > On Wed, Oct 17, 2012 at 5:49 PM, Robert Hansen <bob@rsccore.com> wrote:> > How do you handle units? Like 12 miles or 14 hours?> > That's a very good question. How does one handle units in general? What axioms does one use? If there are none, then Robert's earlier question about an exam is well-posed: "Is this mathematics?"> > How do you show a rational function between polynomials, such that a student can see it and simplify it or factor it?> > What on earth is "a rational function between polynomials"? Dare I ask, "Is this mathematics?"?> > --Louis A. Talman> Department of Mathematical and Computer Sciences> Metropolitan State College of Denver> > <http://rowdy.mscd.edu/%7Etalmanl>